Author Contributions: Dr Loeb had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Loeb, Russell, Earn, Aoki, Caeseele, Chokani, Vooght, Babiuk, Walter.
Acquisition of data: Loeb, Russell, Moss, Fonseca, Fox, Horsman, Caeseele, Chokani, Webby.
Analysis and interpretation of data: Loeb, Russell, Earn, Caeseele, Webby, Walter.
Drafting of the manuscript: Loeb, Russell, Horsman, Walter.
Critical revision of the manuscript for important intellectual content: Loeb, Russell, Moss, Fonseca, Fox, Earn, Aoki, Caeseele, Chokani, Vooght, Babiuk, Webby.
Statistical analysis: Loeb, Walter.
Obtained funding: Loeb, Russell, Fonseca, Caeseele, Babiuk.
Administrative, technical, or material support: Loeb, Russell, Moss, Fonseca, Aoki, Horsman, Chokani, Vooght, Webby.
Study supervision: Loeb, Moss, Fonseca, Aoki, Caeseele, Chokani, Babiuk.
Financial Disclosures: None reported.
Funding/Support: This study was supported by the Canadian Institutes for Health Research and the National Institute for Allergy and Infectious Diseases. Sanofi Pasteur donated vaccines used for the study but provided no funding for the study.
Role of the Sponsor: The sponsors had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript.
Additional Contributions: We thank the members of the data monitoring and safety board: Carolyn Bridges, MD, CDC, Atlanta, Georgia, (Chair), John Koval, PhD, University of Western Ontario, London, and Patricia Parkin, MD, Hospital for Sick Children, Toronto, Ontario. We thank Eleanor Pullenayegum, PhD, McMaster University, Hamilton, Ontario, for providing independent statistical and logistical support; Astrid Petrich, PhD, Hamilton Regional Laboratory Program, Hamilton, Ontario, for providing virologic laboratory support; and Binod Neupane, McMaster University, for providing technical analytic support. We thank Angela Barbara, MSc, Cassandra Howe, MSc, Pardeep Singh, BSc, the research study staff at McMaster; the research nurses Danielle Zara, BSc, Kanti Pabbaraju, MSc, Sallene Wong, BSc, at the Alberta Provincial Laboratory, Calgary; Paul Levett, PhD, and Ken Brandt, BSc, at Saskatchewan Provincial Laboratory, Regina; Hiroshi Mamiya, MSc, at Cadham Provincial Laboratories, Winnipeg, Manitoba; and Ashley Webb, BSc, Daniel Darnell, BSc, Jennifer DeBeauchamp, BSc, at St Jude Children's Research Hospital, Memphis, Tennessee. These laboratory staff members helped with the processing of 4 specimens or the organization of specimen receipt at their sites. With the exception of the data safety and monitoring board members to whom we plan to offer a stipend, all those who received an acknowledgment received compensation.
This article was corrected online for typographical errors on 4/8/2010.